You are invited to download this guide to Pioneer's auto room-correction system, which includes more technical detail than most marketing material.
As many AVS members know, automatic room correction has been available in AV receivers and preamp/processors for years. You place the microphone that came with the AVR or pre/pro at your listening position and connect it to the device, then you initiate a process within the unit that plays a series of signals on each speaker in your system. The AVR or pre/pro analyzes the sound captured by the microphone and automatically sets various parameters, such as speaker size (large or small) and the distance from each speaker to the mic (which determines the amount of delay to apply to each channel) as well as equalization, which cuts or boosts different frequency ranges to compensate for an uneven frequency response at the listening position due to the room's acoustics.
There are many such systems available today, including Pioneer's MCACC (Multi-Channel ACoustic Calibration), Yamaha's YPAO (Yamaha Parametric Acoustic Optimizer), and Audyssey (used in current Onkyo, Integra, Denon, and Marantz products). Depending on the room, the results are often better than the default settings, but not always; for more on AVS members' experiences with auto room correction, see the poll, "Does Auto Room Correction Do More Good or Harm?
Pioneer's auto room-correction system is now available in three versions—MCACC, Advanced MCACC, and MCACC Pro—which are implemented in the company's AVRs according to price and performance level. In order to help consumers understand MCACC, Pioneer has allowed me to make available a detailed reference guide or "white paper" that explains the essence of the system, the inner workings of each version, and additional technical details. To download a copy of this document, click here
Of course, the MCACC Reference Guide is from Pioneer, so it extols the virtues of the system without mentioning any potential limitations. But it does include more technical detail than I've seen in most marketing material, with lots of helpful graphics. It also reveals that subwoofer equalization—the absence of which was one of the most common consumer complaints—is now available in Advanced MCACC and the new MCACC Pro; in fact, the Pro version can equalize two subwoofer outputs independently.
If you're interested in learning more about how Pioneer's auto room-correction system works, the 2014 MCACC Reference Guide provides lots of useful info, and it's free. What's not to like?
Note: This is the first of what I plan to be many technical white papers made available for downloading on AVS from a variety of companies and organizations.
Like AVS Forum on Facebook
Follow AVS Forum on Twitter
+1 AVS Forum on Google+